Originally Posted by
John E
If I want or need to merge or change lanes, I use the mirror first to identify a gap in traffic, before looking back to verify the gap.
This is super important and I imagine is not something the radar would help you with. On one of my road bikes I have this little mirror disguised as the drop bar end plug, which swings down to reflect what's behind me. Seemed like a good idea when I saw it online but the mirror is so small it's near useless. Cranking my head around to see if I can switch across lanes to make a left is getting uncomfortable and dangerous. I think I need to get a better mirror but I would like it to be something very discreet. Nothing says I'm an old man on a bike more than a big ass mirror on the handlebar ha ha. (I know, give in and except the inevitable)